Nothing. They are both meaningless labels used to try to categorize people so that you don't have to actually listen to and understand their opinions. You can then just say "you're a (insert label here) so I disagree with you."

Nothing. They are both meaningless labels used to try to categorize people so that you don't have to actually listen to and understand their opinions. You can then just say "you're a (insert label here) so I disagree with you."